【广发金工】AI识图关注化工、非银、通信和卫星

Market Performance - The Sci-Tech 50 Index increased by 2.85% over the last five trading days, while the ChiNext Index rose by 3.90%. The large-cap value index fell by 0.02%, and the large-cap growth index increased by 2.70%. The Shanghai 50 Index gained 1.37%, and the small-cap index represented by the CSI 2000 rose by 3.55%. The sectors of non-ferrous metals and national defense performed well, while beauty care and social services lagged behind [1]. Valuation Levels - As of December 26, 2025, the static PE ratio of the CSI All Share Index is at the 82nd percentile. The Shanghai 50 and CSI 300 both stand at 74%, while the ChiNext Index is close to 59%. The CSI 500 and CSI 1000 are at 62% and 64%, respectively. The valuation of the ChiNext Index is relatively at the historical median level [1]. Risk Premium - The risk premium, calculated as the inverse of the static PE of the CSI All Share Index minus the yield of the 10-year government bond, is at 2.69% as of December 26, 2025. The two standard deviation boundary is at 4.70% [1]. Fund Flows - In the last five trading days, ETF inflows amounted to 41.6 billion yuan, and the margin trading balance increased by approximately 45.7 billion yuan. The average daily trading volume across the two markets was 1.9454 trillion yuan [2]. Thematic Investment - The latest thematic investment configuration includes sectors such as chemicals, non-bank financials, communications, and satellite industries. Specific indices mentioned are the CSI Sub-Industry Chemical Index, CSI 300 Non-Bank Financial Index, CSI All Share Communication Equipment Index, and the National Satellite Communication Industry Index [2][3]. AI and Machine Learning Application - The application of convolutional neural networks (CNN) for modeling price and volume data has been explored, focusing on standardizing chart data to predict future prices and mapping learned features to industry themes [10].